National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast and Breezy

44°F

7°C

Humidity 34%
Wind Speed N 23 G 29 mph
Barometer 30.48 in (1031.8 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 29 Dec 7:56 am CST
Extended Forecast for

Lockhart TX

Wind Advisory until December 29, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 29, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Today

    High: 50 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. North wind 5 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Light west southwest wind becoming southwest 5 to 10 mph in the morning.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. South southwest wind around 5 mph.

    Low: 40 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 73. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. South southwest wind 5 to 10 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 50. North northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 38. North wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 57. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 33. Calm wind.
Wednesday
Sunny, with a high near 66. Light west southwest wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 40. South southwest wind around 5 mph.
New Year's Day
Partly sunny, with a high near 73. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 54. South southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
6:44 am CST Dec 29, 2025
Forecast Valid:
8am CST Dec 29, 2025-6pm CST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation